Color Palette Generator

Enter a base color and instantly generate harmonious color palettes using color theory. Choose from six harmony types. Copy colors as HEX, RGB, or HSL. Export as CSS variables or Tailwind config.

Base Color

Harmony Type

Generated Palette

Analogous -30

HEX: #3ce0f6

RGB: rgb(60, 224, 246)

HSL: hsl(187, 91%, 60%)

Base

HEX: #3c83f6

RGB: rgb(60, 131, 246)

HSL: hsl(217, 91%, 60%)

Analogous +30

HEX: #523cf6

RGB: rgb(82, 60, 246)

HSL: hsl(247, 91%, 60%)

Export

:root {
  --palette-1: #3ce0f6;
  --palette-2: #3c83f6;
  --palette-3: #523cf6;
}

How to Use the Color Palette Generator

Enter a base color using the color picker or type a hex code
Choose a harmony type: complementary, analogous, triadic, or more
See the generated color palette with all color values
Copy individual colors or the entire palette as CSS variables
Export as a Tailwind CSS config snippet for your project

What Is Color Theory and Why Does It Matter?

Color theory is the foundation of visual design, guiding how colors interact, contrast, and harmonize with one another. At its core, color theory uses the color wheel — a circular arrangement of hues — to define relationships between colors. These relationships, called color harmonies, produce combinations that feel balanced and aesthetically pleasing to the human eye.

The six primary harmony types — complementary, analogous, triadic, tetradic, split-complementary, and monochromatic — each create distinct visual effects. Complementary pairs sit opposite each other on the wheel and produce high contrast. Analogous colors sit side by side and create smooth, unified palettes. Triadic and tetradic harmonies distribute colors evenly around the wheel for vibrant, balanced schemes.

Understanding color theory lets designers make intentional choices that evoke specific emotions, guide user attention, and reinforce brand identity. A well-chosen palette communicates professionalism and builds trust, while a poorly matched set of colors can confuse users and undermine credibility. Tools like this palette generator automate the math behind these harmonies, letting you focus on creative decisions rather than manual calculations.

Common Use Cases

Brand Identity Design

Generate harmonious brand palettes from a single primary color. Ensure your logo, website, packaging, and marketing materials share a cohesive color system that strengthens brand recognition.

Web and UI Design

Build accessible color systems for websites and applications. Use monochromatic palettes for subtle UI layers or complementary palettes for high-contrast call-to-action elements.

Presentations and Slide Decks

Create visually consistent slide decks by generating a palette from your brand color. Export as CSS variables or apply the hex values directly to charts, backgrounds, and text elements.

Social Media and Marketing

Produce eye-catching social media graphics with harmonious color combinations. Consistent palettes across posts build a recognizable visual brand on platforms like Instagram and LinkedIn.

Color Palette Best Practices

Start With One Strong Base

Choose a single meaningful base color — often your brand primary — and let the harmony rules generate the rest. Starting with too many colors leads to visual clutter.

Test for Accessibility

Check that text colors meet WCAG contrast ratios (4.5:1 for body text, 3:1 for large text) against your backgrounds. Beautiful palettes must also be readable.

Use the 60-30-10 Rule

Allocate 60% of your design to a dominant color, 30% to a secondary, and 10% to an accent. This creates a balanced layout that guides the eye naturally.

Export and Document

Export your palette as CSS variables or a Tailwind config so every developer on the team uses the exact same values. Consistency prevents color drift across a project.

Harmony Types Compared

Harmony Types Compared
Harmony	Colors	Contrast	Best For
Complementary	2	High	CTAs, bold designs
Analogous	3	Low	Calm, unified layouts
Triadic	3	Medium	Vibrant, balanced schemes
Tetradic	4	High	Complex, rich designs
Split-Complementary	3	Medium–High	Softer contrast
Monochromatic	5	Low	Subtle UI layers

Frequently Asked Questions

What is color harmony?▾

Color harmony is the theory of combining colors in a way that is visually pleasing. It uses the color wheel to define relationships like complementary (opposite), analogous (adjacent), and triadic (evenly spaced) to create balanced palettes.

How do complementary colors work?▾

Complementary colors sit directly opposite each other on the color wheel (e.g., blue and orange). They create high contrast and visual tension, making them ideal for call-to-action elements and bold designs that need to stand out.

What is the best color palette for web design?▾

There is no single best palette. Analogous palettes work well for calm, cohesive layouts. Complementary palettes are great for CTAs. Monochromatic palettes are ideal for subtle UI layers. Choose based on your brand goals and target audience.

How many colors should a palette have?▾

Most effective design systems use 3 to 5 primary colors plus neutrals. The 60-30-10 rule recommends a dominant color (60%), secondary (30%), and accent (10%) for visual balance.

What is the difference between analogous and monochromatic?▾

Analogous palettes use 2-3 neighboring hues on the color wheel (e.g., blue, blue-green, green). Monochromatic palettes use a single hue with varying lightness and saturation levels. Analogous offers more variety; monochromatic offers more unity.